using System;
using System.Collections;
using System.Collections.Generic;
using Server.Targeting;

namespace Server.Spells.Spellweaving
{
	public class GiftOfRenewalSpell : ArcanistSpell
	{
		private static SpellInfo m_Info = new SpellInfo(
				"Gift of Renewal", "Olorisstra",
				-1
			);

		public override TimeSpan CastDelayBase { get { return TimeSpan.FromSeconds( 3.0 ); } }

		public override double RequiredSkill { get { return 0.0; } }
		public override int RequiredMana { get { return 24; } }

		public GiftOfRenewalSpell( Mobile caster, Item scroll )
			: base( caster, scroll, m_Info )
		{
		}

		public override void OnCast()
		{
			Caster.Target = new InternalTarget( this );
		}

		public void Target( Mobile m )
		{
			if( !Caster.CanSee( m ) )
			{
				Caster.SendLocalizedMessage( 500237 ); // Target can not be seen.
			}
			if( m_Table.ContainsKey( m ) )
			{
				Caster.SendLocalizedMessage( 501775 ); // This spell is already in effect.
			}
			else if( !Caster.CanBeginAction( typeof( GiftOfRenewalSpell ) ) )
			{
				Caster.SendLocalizedMessage( 501789 ); // You must wait before trying again.
			}
			else if( CheckBSequence( m ) )
			{
				SpellHelper.Turn( Caster, m );

				Caster.FixedEffect( 0x374A, 10, 20 );
				Caster.PlaySound( 0x5C9 );

				if( m.Poisoned )
				{
					m.CurePoison( m );
				}
				else
				{
					double skill = Caster.Skills[SkillName.Spellweaving].Value;

					int hitsPerRound = 5 + (int)(skill / 24) + FocusLevel;
					TimeSpan duration = TimeSpan.FromSeconds( 30 + (FocusLevel * 10) );

					GiftOfRenewalInfo info = new GiftOfRenewalInfo( Caster, m, hitsPerRound );

					Timer.DelayCall( duration,
						delegate
						{
							if( StopEffect( m ) )
							{
								m.PlaySound( 0x455 );
								m.SendLocalizedMessage( 1075071 ); // The Gift of Renewal has faded.
							}
						} );



					m_Table[m] = info;

					Caster.BeginAction( typeof( GiftOfRenewalSpell ) );

					BuffInfo.AddBuff( m, new BuffInfo( BuffIcon.GiftOfRenewal, 1031602, 1075797, duration, m, hitsPerRound.ToString() ) );
				}
			}

			FinishSequence();
		}

		private static Dictionary<Mobile, GiftOfRenewalInfo> m_Table = new Dictionary<Mobile, GiftOfRenewalInfo>();

		private class GiftOfRenewalInfo
		{
			public Mobile m_Caster;
			public Mobile m_Mobile;
			public int m_HitsPerRound;
			public InternalTimer m_Timer;

			public GiftOfRenewalInfo( Mobile caster, Mobile mobile, int hitsPerRound )
			{
				m_Caster = caster;
				m_Mobile = mobile;
				m_HitsPerRound = hitsPerRound;

				m_Timer = new InternalTimer( this );
				m_Timer.Start();
			}
		}

		private class InternalTimer : Timer
		{
			public GiftOfRenewalInfo m_Info;

			public InternalTimer( GiftOfRenewalInfo info )
				: base( TimeSpan.FromSeconds( 2.0 ), TimeSpan.FromSeconds( 2.0 ) )
			{
				m_Info = info;
			}

			protected override void OnTick()
			{
				Mobile m = m_Info.m_Mobile;

				if( !m_Table.ContainsKey( m ) )
				{
					Stop();
					return;
				}

				if( !m.Alive )
				{
					Stop();
					StopEffect( m );
					return;
				}

				if( m.Hits >= m.HitsMax )
					return;

				int toHeal = m_Info.m_HitsPerRound;

				SpellHelper.Heal( toHeal, m, m_Info.m_Caster );
				m.FixedParticles( 0x376A, 9, 32, 5005, EffectLayer.Waist );
			}
		}

		public static bool StopEffect( Mobile m )
		{
			GiftOfRenewalInfo info;

			if( m_Table.TryGetValue( m, out info ) )
			{
				m_Table.Remove( m );

				info.m_Timer.Stop();
				BuffInfo.RemoveBuff( m, BuffIcon.GiftOfRenewal );

				Timer.DelayCall( TimeSpan.FromSeconds( 60 ), delegate { info.m_Caster.EndAction( typeof( GiftOfRenewalSpell ) ); } );

				return true;
			}

			return false;
		}

		public class InternalTarget : Target
		{
			private GiftOfRenewalSpell m_Owner;

			public InternalTarget( GiftOfRenewalSpell owner )
				: base( 10, false, TargetFlags.Beneficial )
			{
				m_Owner = owner;
			}

			protected override void OnTarget( Mobile m, object o )
			{
				if( o is Mobile )
				{
					m_Owner.Target( (Mobile)o );
				}
			}

			protected override void OnTargetFinish( Mobile m )
			{
				m_Owner.FinishSequence();
			}
		}
	}
}